Question

$2,4-\mathrm{D}$ is used:

• A. For higher yield
• B. As weedicide
• C. As insecticide
• D. None

Answer 1

The correct option is B

As weedicide

The correct option is B

Explanation of the correct option:

1. $2,4-\mathrm{D}$ also known as $2,4-\mathrm{Dichlorophenoxyacetic}\mathrm{acid}$systemic weedicide and herbicide.
2. Herbicide is a chemical substance that kills unwanted plants known as weeds.
3. $2,4-\mathrm{D}$ is used to kill broadleaf weeds.
4. It causes the weed's cells to expand uncontrollably, resulting in death from starvation.

Explanation of the incorrect options:

Option A:

$2,4-\mathrm{D}$ is a weedicide, it does not increase the yield of the crops.

Option C:

Insecticides are chemical substances that are used to kill plant deteriorating insects known as pests.

Final answer: $2,4-\mathrm{D}$ is used as a weedicide.